.meter-wrap {
    position: relative;
}

.meter-wrap, .meter-value, .meter-text {
    /* The width and height of your image */
    width: 400px;
    height: 20px;
}

.meter-wrap, .meter-value {
    background: #bdbdbd;
}

.meter-text {
    position: absolute;
    top: 0;
    left: 0;

    padding-top: 1px;

    color: #fff;
    text-align: center;
    width: 100%;
}